Method of forming articles



1934- w. G. STONER METHOD OF FORMING ARTICLES Filed Oct. 24, 1932 kli ltillll IN VENTOR Go/eao/l/ 570MHz A TTORNE Y Patented Nov. 27, 1934 mm;,s'mrss PATENT OFFICE g 1 982404 METHOD or ronMma Aafrloms Willis GordonStoner, Detroit; Mich; assignor to TheMidland- Steel Produets'tlompanygCleveland, Ohio, a corporation of Ohio I l Application October 24, 19 32,-"SeriallNo. teams r v Claims. (01; 29-45% Thiszinventlom relates to.the production of ve-.-

hlcleaframelsidexrails. and. has as itsobject, thleI economicalproduction of rails possessing oilsets Ora kiokups; withoutnecessitating theuse of. ex-

l' pensive edgewise bendingsoperations to obtain the i maximum: number.of; body blanks of. appropriate contour. fronrthe minimumamount orstock. and;

with minimized scrap loss.

: Anotherimportant object of the invention is 1 to layout the, blankswith relation' to the contour:-

oi the stock material; whereby stock materialjbetween. corresponding.ends. of blanks usually scrapped, will be of proper contour tobeused informing i those Y portions of the. body, blanks ordinari-ly-requiringthe use of widerstock, and, at: thesame time to cause the stockmaterial.,or.di, narily forming, the more; ori lessuseless "smaller;

pieces of, scrapg-t to; be consolidated '3 into a. larger single pieceofexcessumaterial from: which other: can be. economically laterallyofiset/portionsin the same plane thereof:

can. be formed; from stock'no wider than the widest portion of: the,flnishedrbodyi blank. t.

kzstill further object ofzthe invention is .tcIorm; side rails byaddition of supplementallstoclr tothe? primary stock-causingthe'rai1s topassesswelded seams in the vicinity: of; thelltickuptorrofiset pertiorr,thereby strengtheningethe rails against,

bendin and torsional stress;

other: objeets'andadvantages of the-invention? will 1 become'apparentaduringzthe. course of the ;following:description.v

In the accompanyingdrawing; which forms; a part: of 1' the descriptive:matter and wherein like likecparts p scrap loss laterally'oitheeupperedge'of thesblank Fig. 1 iis-ablahil1ustrating theprocessor ;blank,-

numerals are employed; to designate; throughout theseveralviews, a

"ing side rails from strip stock. ,c

Fig. 2 is a plan showing-the process of multiple blanking suchrailsirom'plateorsheet stock whereby scrap loss is minimized.

3 is a perspective view of the-rear end otf-ra. formed 1 side railillustrating. the relationship of r the; welded seamto thesklckupportion.

4.is atransversesection-of the same taken u Referring now'in detail tothe drawing for a:-

more comprehensive understanding of thesavoutline I1 and have at theirfront'or rear end} or both, laterally oilset portions: morecommonlyknown: as kickups to be disposedabove the axles of; a motor'vehicle forthe purpose of lowering the. center: of gravity thereof asis well understood in. the; art; These offset or kickup portions extendlaterally fromthe'longitudinaledge of the-main body. blank in the same plane therewithand are: produced; eitherfrom blanks properly contoured by! subjectingthem to an edgewise bending; operation which is very expensive andmoreover does not produce satisfactory blanksdue to the-wrinkling Oflthe stock in the vicinity ofi'theaofisetg or 'by cuttingiout the bodyblanks F into: final contour: in the blanking operation to possesstherequisite lateral: ofl'setportion 12' without; further treatment;However, the latterablankingiprocess"results in considerable scrap lossarising out; of: the irregularly shaped stock materialbetweenindividualbody blanks due to thempracticallimpossibility ofarranging the body blanks-any; closer: together than. is permitted bythe:-.contour:of the particular blanks, being formed. In: other; words,blanking of the rails by the latter method would require the use of?stock strip having :a'avidthC ofFigs. Land 2 resulting in loss by scrapof the materiall'designated' by the letter S; With: theiuseiofzthehereindescribed method, it impossible-to blankahut these. rails from muchnarrower, and1 incidentally cheaper stock, possessing. a widthdesignated bythe letter D'in Figs; 1 and';,2; Comparativelyspeakingtherefore, thewidth'cofr'therstoch necessary with this process needbelno wider than the widestportionof the raiLblankdesignated atArin-zFig. 1; or in blankingri-from :plataor, sheet; nozwider than adistance equalto l the combined widest portions ,of all oftheblanksrinthe: sheet; as-aresultof which, the

iswreduced fromithes area ;S to the longitudinally extending area's". l

. Withqtheuse of suchrelatively'narrow: stock, aiportionofithe kickupiorlateral offset 1 2 neces sari'l-y. falls. 1 beyond J the upperlongitudinal edge of the-stock, but thisdeficiency of primary'stock ismade-up'byemployinga portionK of the usual scrapv lyingbeltmw thekickup, and'by'i welding this supplemental-stock K- to the longitudinaledge of the strip stock'at the-point where the kick-up will fall inblanking operation. Obviously, this supplemental-stock K is disposed inthe same plane as the-primary stock andis welded along the line 13extending longitudinally of the kick.- up portion and substantiallyperpendicular to body-loads: Inthe'case offlashwelding'theflash' againstdeflection or torsional stress.

may be permitted to remain in the finished rail to constitute areinforcing bead, or it may be removed or other types of welding such asbuttwelding may be employed where the welded seam itself possessessufficient strength for the loads to be imposed. It will be noted thatblanking of the supplemental stock K can be figured so that onelongitudinal edge thereof will coincide with the longitudinal edge ofthe strip 10 and therefore is thus prepared for welding to the oppositecorresponding longitudinal edge of the strip stockwithout furthercutting or trimming. The edges of the supplemental stock K and primarystock of the kickup-which are to be Welded together,

can be of any desired outline to cause the welded seam .13 to bedisposed across any desired por-,

tions of the web and flanges of the rail to rein force the same againstdynamic and other stresses over the kickups. Obviously, the forward, endof the rail may also possess a laterally extending offset portion orkickup to be disposed over the front axle to still further lower thecenter of gravity of the chassis, in which event other sup-. plementarystock may be obtained from the strip in the region below and between theends of adjacent blanks in the strip stock and welded to thelongitudinaledge of the strip in the "same manner as the supplementarystock K. The dotted lines 14 paralleling the outlining contour oftheblank represent thelines along which the blanks are bent orformed'into channelsection as illustrated in Figs. 3 and 4.

- After the supplementary pieces of stock K are welded to the edge ofthestrip, the rails are blanked out vin a fashioncausing a portion ofthe kickup 12 to extendinto the supplementary stock.- The blanks arethen cut out of the strip in the customary manner and'are formed intochannel section, thereby causing the welded seam 13 toextend:longitudinally across the arch of the kickup in the web portionof the rail with the ends 15 of the welded seam extending obliquelyacross the upper flange 16 of the rail at-either' side of the kickup tofurther reinforce the same . In the multiple blanking of rails fromsheet or plate stock such as shown" in Fig. 2, the use ofthe hereinprocess also results in minimizing loss by way of scrap. With sheet-orplate stock having a width equal to the distance D of Fig. 2, itwouldonly be possible to obtain two'side rails therefrom and inorder toobtain a third side rail from such a sheet, it would be necessary toprovide'stock having a width equal to the distance C of Fig.2. In thelatter method, it will be seen that the portion of a plate or sheetabove the upper longitudinal edge of the upper blank would be scrap aswell as those portions of the original stock, located between thecorresponding ends of the blanks; The'numerals and letters employed inFig. 2 corresponding to those of Fig.1 designate corresponding elementsso that reference thereto in conjunction with-the description of Fig. 1will clarify the multiple blanking process from sheet or plate stockindicated by the numaterial K and simultaneously creates a closerdisposition of the rear ends of the blanks for the concentration orconsolidation into one larger piece of excess stock 19, the smallerpieces of material lying between the rear ends of adjacent blanks,which, due to the vast irregularities of outline, can be of no greatuseful purpose. If desired the kickup K ran be blanked from the excessstock 19 at the point 20 and still leave a sufficiently large piece 19for the formation of ,other large articles. In the multiple blanking ofrails, only one welded rail is obtained from each sheet or plate stock,but where hundreds of sheets or plates are used in blanking out rails,the welded rails can be paired off into the same frame to effectequality of performance in use.

It will be apparent in either method, that the portions K'forming thekickups can be cut out in final or approximately final shape and then bewelded to the rail either before or after the latter is blanked, andthat these portions may be out either from the main stock or fromauxiliary stock.

It is'to be understood that various'changes in the size, shape andarrangement of parts may be resorted-to without departing fromthe'spirit of the invention or scope of the appended claimsy I claim:

1. The method of forming a vehicle side'rail which consists intaking apiece of stock having a width as wide as the widest portion of therail,"

cutting a portion of the stock therefrom, welding the same to thelongitudinal edge of thestockat a 'point' remote from the widest portionof the rail, blanking out the rail with an offset portion extending intosaid welded piece of stock,"and

then forming the rail into'channel section.

2..The method of forming a vehicle side rail which comprises taking apiece of straight edge stock having a width at least as wide asthewidest portion of the rail, cutting a piece of stock with one edgethereof coincident with the straight edge of the stock, welding'thestraight edgeof the cut portion'to the straight edge'of the stock at apoint remote from the widest portion of the rail, and blanking out therail with an offset portion extending into said welded piece of stock.

3. The method of forming metallic articles which comprises taking asheet "of 'main stock having a width at least as wide as the combinedwidth of the widest portions of the articles, cut-' ting a piece ofauxiliary stock, welding the same to the edge of the main stock at apoint'remote from the combined widest portions-of the rails;

and blanking out the rails with their longitudinal axes extendingobliquely of the stock with their rear endsclosely grouped toconcentrateany excess material into'one piece and with an offset portionof at least one of the rails extending into said welded piece of stock;b

i 4. A method of forming a metallic article which consists in taking apiece of main stock having a width at least aswide as the widest portionof the" article to be formed, welding a piece of auxiliary stock to thelongitudinal edge of the main stock at a point remote from the thewidest portion of said article and then blanking out the article withan, offset portion extending into said welded piece of stock.

5. The method offorming a metallic-article which consists in taking apiece of main stock having a width at least as wide as the widestportion ofv thearticle, blankingqout; an incomplete article, welding tothe main stock at a point re mote from the widest portion thereof apiece of auxiliary stock of requisite shape to form a complete articlehaving an offset portion at said weld, and then forming the article ofthe requisite cross-section.

6. The method of forming a metallic article which consists in taking apiece of main stock having a width at least as wideas the widest portionof the article, outlining an incomplete article blank on the stock andwelding to the longitudinal edge of the stock at a point remote from thewidest portion of the article a piece of auxiliary stock of requisiteshape to form a complete article having an offset portion at said weld.

7. The method of forming metallic articles which comprises taking asheet of main stock having a width at least as wide as the combinedwidest portions of the article, blanking out the articles with at leastone of the articles incomplete and with their longitudinal axes extend-'ing obliquely to the stock with their rear endsv WILLIS GORDON STONER.

